Dappsを支えるオラクル

by oidong

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%BQQTΛࢧ͑Δ ΦϥΫϧ Gunosy ৽نࣄۀ෦ Πϯλʔϯ @ryoidong

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ࣗݾ঺հ 3ZPUB,PKJNB !SZPJEPOH  (VOPTZ৽نࣄۀ෦Πϯλʔϯ 4'$̏೥ %BQQTͷٕज़Ϗδωεௐࠪ &Y7J.&5σΟϨΫλʔ

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ΞδΣϯμ ɾͦ΋ͦ΋ΦϥΫϧͱ͸ ɾ%BQQTͷͨΊͷΦϥΫϧιϦϡʔγϣϯ

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ΦϥΫϧͱ͸

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ਆୗ

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ྫɿ༧ଌࢢ৔ ʮࠓ೔ͷ࿡ຊ໦ͷఱؾ͕੖ΕͰ͋ΕΔ͔൱͔ʯ ͰεϚʔτίϯτϥΫτΛ࣮ߦ͢Δ

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֎෦ͷ"1*΍ηϯαʔσʔλͳͲ Πϯλʔωοτ্ͷσʔλΛ༻͍ͨ εϚʔτίϯτϥΫτΛ࡞੒͍ͨ͠

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͔͠͠

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ϒϩοΫνΣʔϯͰ͸ωοτϫʔΫ಺Ͱ ίϯηϯαεΛऔΔͨΊɺ ࣮ߦຖʹมΘΔཚ਺ͳͲෆ࣮֬ͳσʔλΛѻ͑ͳ͍ ܾ·ͬͨσʔλΛ νΣʔϯ಺ʹ఻͑Δखஈ͕ඞཁ

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ΦϥΫϧ

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͞·͟·ͳνΣʔϯ֎ͷιʔε͔ΒσʔλΛऔΓग़͠ɺ εϚʔτίϯτϥΫτʹͦͷσʔλΛ౉͢΋ͷɻ ΦϥΫϧͱ͸ɺʮσʔλΩϟϦΞʯͰ͋Δɻ

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ͨͩ͠ʜ ֎෦͔Β౉͞Εͨσʔλʹ͍ͭͯɺ ਖ਼͠͞ͷίϯηϯαεΛऔΔ͜ͱ͕೉͍͠ ˠ͋ΔओମΛ৴པ͢ΔʮूݖܕΦϥΫϧʯ ˠ৴པͳ͠ʹ߹ҙ͢Δʮ෼ࢄܕΦϥΫϧʯ

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ͨͩ͠ʜ ֎෦͔Β౉͞Εͨσʔλʹ͍ͭͯɺ ਖ਼͠͞ͷίϯηϯαεΛऔΔ͜ͱ͕೉͍͠ ˠ͋ΔओମΛ৴པ͢ΔʮूݖܕΦϥΫϧʯ ˠ৴པͳ͠ʹ߹ҙ͢Δʮ෼ࢄܕΦϥΫϧʯ ࣮༻తʹ͸΄΅ͪ͜Β͕࢖ΘΕ͍ͯΔ ˞෼ࢄܕΦϥΫϧ͸ӡӦͷΠϯηϯςΟϒઃܭ͕೉͘͠ɺݱࡏӡ༻͞Ε͍ͯΔ΋ͷ͕΄΅ͳ͍

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%BQQTͰ ΦϥΫϧΛ࢖͏ ιϦϡʔγϣϯ

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3FBMJUZ,FZT ҝସϨʔτɺ҉߸௨՟औҾɺ'SFFCBTFͷΦʔϓϯσΟϨΫτϦͳ Ͳͷσʔλιʔε͔Βɺࢦఆ೔࣌ʹ͓͚Δࣄ࣮ͷਅِ൑ఆΛߦ͑Δ جຊແྉͷαʔϏεɻ ࣄ࣮ʹରͯ͠ɺʮ:FTʯʮ/Pʯͷͭͷ&$%4"҉߸伴ϖΞΛੜ੒ ͠ɺਖ਼͍͠ํͷൿີ伴͕ެ։͞ΕΔ࢓૊Έɻ IUUQTXXXSFBMJUZLFZTDPN

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3FBMJUZ,FZT :FT QVCMJD@LFZ /0 1VCMJD@LFZ :FT QSJWBUF@LFZ /0 QSJWBUF@LFZ ʮ͕ऴΘΔ࣌఺Ͱͷ#5$ͷՁ͕֨ສԁΛ௒͍͑ͯΔ͔ʁʯ ֎෦σʔλιʔε "1*Ͱࣗಈతʹ ࢦఆ೔࣌ͷࣄ࣮Λ֬ೝ

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3FBMJUZ,FZT :FT QVCMJD@LFZ /0 1VCMJD@LFZ :FT QSJWBUF@LFZ /0 QSJWBUF@LFZ ʮ͕ऴΘΔ࣌఺Ͱͷ#5$ͷՁ͕֨ສԁΛ௒͍͑ͯΔ͔ʁʯ ֎෦σʔλιʔε ެ։͞Εͳ͍ ਖ਼͍͠ํͷ݁Ռͷ ൿີ伴͕ࣗಈͰެ։͞ΕΔ ˞"1*Ͱऔಘ͞Εͨࣄ࣮͕ؒҧ͍ͬͯΔͱߟ͑Δ৔߹ɺ ༗ྉͰ3FBMJUZ,FZTͷਓؒʹ࠶֬ೝΛґཔͰ͖Δɻ

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3FBMJUZ,FZT 1SPT$POT #JUDPJOͰ΋3FBMJUZ,FZTΛ༻͍ͨτϥϯβΫγϣϯ͕ͭ͘ ΕΔɻ  ྫɿIUUQTHJUIVCDPNSFBMJUZLFZTSFBMJUZLFZTFYBNQMFTCMPCNBTUFS SFBMJUZLFZTEFNPQZ  ೝূہͱ͔ͯ͠ͳΓूݖత ެ։͞Ε͍ͯΔҰ෦ͷ"1*ʹ৘ใऔಘ͕ݶΒΕ͍ͯΔ

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0SBDMJ[F &UISFVNͳͲͷϒϩοΫνΣʔϯʹσʔλΛτϥϯβΫγϣ ϯʹྲྀ͠ࠐΉܗͷΦϥΫϧɻ ैྔ՝੍ۚ 1SPPG4IJFMEͰσʔλऔಘͷਖ਼౰ੑΛΦϯνΣʔϯͰ֬ೝͰ ͖Δ࢓૊Έ͕࣮૷͞Ε͍ͯΔɻʢݱࡏςετωοτͷΈʣ IUUQXXXPSBDMJ[FJU

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εϚʔτίϯτϥΫτ 0SBDMJ[F ֎෦σʔλιʔε σʔλΛ&UISFVNͷ τϥϯβΫγϣϯʹೖΕɺ  @@DBMMCBDLΛ࣮ߦͯ͠஋Λ௨஌ σʔλιʔε͔Β PSBDMJ[F͕σʔλΛड͚औΔ PSBDMJ[Fʹ ֎෦ͷ৘ใऔಘΛґཔ σʔλιʔε΁ औಘϦΫΤετΛߦ͏

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0SBDMJ[F TPMJEJUZDPEF ίʔϧόοΫ ݺͼग़͠

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0SBDMJ[F 1SPT$POT ࣮૷͕؆୯ 0SBDMJ[Fͦͷ΋ͷͷίϯτϥΫτ͕ެ։͞Ε͍ͯΔ σʔλͷਖ਼౰ੑΛݕূ͢Δ࢓૊Έ͕͋Δɻ  جຊతʹ͸ύϒϦοΫνΣʔϯ༻ͷαʔϏεͳͷͰɺ  ػີσʔλͳͲΛऔΓѻ͏͜ͱ͕೉͍͠ɻ

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ͦͷଞͷΦϥΫϧίϯηϓτ $IBJO-JOL  ʮ"'VMMZ%FDFOUSBMJ[FE0SBDMF/FUXPSLʯΛᨳ͏ΦϥΫϧɻ  Ϣʔβʔ͸ɺ$IBJO-JOL্ͷෳ਺ͷΦϥΫϧϊʔυΛΦϥΫϧͷධ൑ͳͲ͔Βબ୒ ͠ɺϊʔυͷճ౴Λฏ४Խ͍ͯ͘͠ίϯηϓτɻʢਖ਼ࣜϦϦʔε͍ͯ͠ͳ͍ʣ  (OPTJT  ݱࡏ͸0SBDMJ[FͳͲͷDFOUMJ[FΦϥΫϧΛத৺ʹ࣮૷༧ఆ͕ͩɺ  &5)Λ༻͍ͯ݁Ռʹର͢ΔҟٞͷνϟϨϯδ 6MUJNBUF0SBDMF Λ͢Δ͜ͱ ͕Ͱ͖Δɺ෼ࢄܕΦϥΫϧͷίϯηϓτͳͲ΋༧ఆ͞Ε͍ͯͨɻ 

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·ͱΊ ΦϥΫϧ͸νΣʔϯ֎ͷσʔλΛνΣʔϯʹ౉͢΋ͷ ݱঢ়͸0SBDMJ[F͕࢖͍΍͘͢ɺσϑΝΫτײ ͔͠͠ɺͲΕ΋ࠜຊతʹ͸ूݖܕͳͷͰɺ  ෼ࢄܕͷίϯηϓτ͸·ͩ͜Ε͔Βʹظ଴